NDLI: PFC / JA-96-39 ICRF Heating Scenarios on Alcator C-Mod

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PFC / JA-96-39 ICRF Heating Scenarios on Alcator C-Mod

Content Provider	Semantic Scholar
Author	Bonoli, Paul T. Golovato Shea, P. O. Porkolab, Miklos Takase, Yuichi Boivin, Réjean L. Bombarda, Francesca Christensen Fiore Garnier Goetz Granetz, Robert S. Greenwald Horne Hubbard Hutchinson, Ian H. Irby LaBombard, B. Lipschultz, Bruce Marmar Mazurenko Mccracken Reardon Rice Rost Schachter Snipes Stek, Pam Terry Watterson, Reich Welch, B. Wolfe
Copyright Year	2014
Abstract	Successful high power ICRF heating of L-mode and H-mode plasmas has been performed in the Alcator C-Mod tokamak with up to 3.5 MW of RF power at 80 MHz. Efficient absorption (90-100%) of the RF power was observed for D(H) heating at 5.3 T (here the minority ion species is indicated parenthetically). Lower single-pass absorption experiments were also performed in D(3He) at 7.9 T, D( 2 13He) at 4.0 T, and D(2SIH) at 2.6 T. Boronization has been found to improve the heating efficiency of these lower single pass absorption schemes through a reduction in the radiated power. Direct on-axis electron heating via mode converted ion Bernstein waves (IBW) has been observed in H(3 He) plasmas at 6.5 T and off-axis electron heating has been observed in D('He) at 7.9 T. The electron heating power density profiles were inferred in these experiments using an RF power modulation technique. The implications of these heating results for steady state advanced tokamak operation in C-Mod are discussed.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://dspace.mit.edu/bitstream/handle/1721.1/95307/96ja039_full.pdf;jsessionid=0BBCCE9DAA4C3F437F16887B9DE532D3?sequence=1
Alternate Webpage(s)	http://dspace.mit.edu/bitstream/handle/1721.1/95307/96ja039_full.pdf?sequence=1
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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